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17104145 = 53420829
BaseRepresentation
bin100000100111…
…1110100010001
31012011222110212
41001033310101
513334313040
61410333505
7265245212
oct101176421
935158425
1017104145
119722663
12588a295
13370b2c6
1423b3409
15177cd65
hex104fd11

17104145 has 4 divisors (see below), whose sum is σ = 20524980. Its totient is φ = 13683312.

The previous prime is 17104127. The next prime is 17104147. The reversal of 17104145 is 54140171.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2845969 + 14258176 = 1687^2 + 3776^2 .

It is a cyclic number.

It is not a de Polignac number, because 17104145 - 26 = 17104081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17104145.

It is not an unprimeable number, because it can be changed into a prime (17104147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710410 + ... + 1710419.

It is an arithmetic number, because the mean of its divisors is an integer number (5131245).

Almost surely, 217104145 is an apocalyptic number.

It is an amenable number.

17104145 is a deficient number, since it is larger than the sum of its proper divisors (3420835).

17104145 is an equidigital number, since it uses as much as digits as its factorization.

17104145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420834.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 17104145 is about 4135.7157784355. The cubic root of 17104145 is about 257.6521613007.

The spelling of 17104145 in words is "seventeen million, one hundred four thousand, one hundred forty-five".

Divisors: 1 5 3420829 17104145